it must be late because I'm sure this is an easy task with grep sed or awk
string would be anything mixing numbers letters and ) ( =
output I need is just the numbers... but I just can't seem to get it to work.
Any tips would be great :) (10 Replies)
I've got a file with each record on a separate line and each record contains 34 fields separated by a colon and i'm trying to re-arrange the order of the fields and merge together certain fields separated by a slash (like field7/field28). I tried using an awk print statement like
awk -F: 'BEGIN... (5 Replies)
Hello.
Could you please help to know the command to merge multiple text files into one?
I am thinking to use:
cat f1.txt f2.txt f3.txt > f4.txt
Is it okay to use cat command for same purpose - Or could there be any disadvantage in using it?
Thank you (4 Replies)
Hello,
I have several files that begin with db. in my directory and I would like to first take it from a specific word starting from $TTL until the end of the contents then do the same all the way down the directory then merge them into one txt file.
Is this possible? I am using cygwin with... (4 Replies)
Hi All,
I am trying to merge all the text files into one file using below snippet
cat /home/Temp/Test/Log/*.txt >> all.txt
But it seems it is not working.
I have multiple files like Output_ServerName1.txt, Output_ServreName2.txt
I want to merge each file into one single file and... (6 Replies)
Hi,
Please excuse for often requesting queries and making R&D, I am trying to work out a possibility where i have two files field separated by pipe and another file containing only one field where there is no matching columns, Could you please advise how to merge two files.
$more... (3 Replies)
Hello expert friends,
I'm writing a script to capture stats using sar and stuck up at report generation.
I have around 10 files in a directory and need to merge them all vertically based on the time value of first column (output file should have only one time value) and insert comma after... (6 Replies)
Hi all.
This is the content of the text file used for the e-mail:
TM ICP-EDW BILLING REGISTER USAGE BREAKDOWN_01062014.csv
TM_ICP_EDWH_FICL_13062014.TXT
TM_ICP_EDWH_FICL_16062014.TXT
TM_ICP_EDW_Detailed Payment Journal Report_13062014.txt
TM_ICP_EDW_Detailed Payment Journal... (9 Replies)
Hello,
I'm new to this forum. I have always made good use of all the wise hints shown here. But this time I'm struggling with an issue that is driving me crazy.
I have two text files, I have to merge them based on the first column, resulting file must contain all record from the first file... (4 Replies)
Discussion started by: emare
4 Replies
LEARN ABOUT DEBIAN
devel::refcount
Devel::Refcount(3pm) User Contributed Perl Documentation Devel::Refcount(3pm)NAME
"Devel::Refcount" - obtain the REFCNT value of a referent
SYNOPSIS
use Devel::Refcount qw( refcount );
my $anon = [];
print "Anon ARRAY $anon has " . refcount($anon) . " reference
";
my $otherref = $anon;
print "Anon ARRAY $anon now has " . refcount($anon) . " references
";
DESCRIPTION
This module provides a single function which obtains the reference count of the object being pointed to by the passed reference value.
FUNCTIONS
$count = refcount($ref)
Returns the reference count of the object being pointed to by $ref.
COMPARISON WITH SvREFCNT
This function differs from "Devel::Peek::SvREFCNT" in that SvREFCNT() gives the reference count of the SV object itself that it is passed,
whereas refcount() gives the count of the object being pointed to. This allows it to give the count of any referent (i.e. ARRAY, HASH,
CODE, GLOB and Regexp types) as well.
Consider the following example program:
use Devel::Peek qw( SvREFCNT );
use Devel::Refcount qw( refcount );
sub printcount
{
my $name = shift;
printf "%30s has SvREFCNT=%d, refcount=%d
",
$name, SvREFCNT($_[0]), refcount($_[0]);
}
my $var = [];
printcount 'Initially, $var', $var;
my $othervar = $var;
printcount 'Before CODE ref, $var', $var;
printcount '$othervar', $othervar;
my $code = sub { undef $var };
printcount 'After CODE ref, $var', $var;
printcount '$othervar', $othervar;
This produces the output
Initially, $var has SvREFCNT=1, refcount=1
Before CODE ref, $var has SvREFCNT=1, refcount=2
$othervar has SvREFCNT=1, refcount=2
After CODE ref, $var has SvREFCNT=2, refcount=2
$othervar has SvREFCNT=1, refcount=2
Here, we see that SvREFCNT() counts the number of references to the SV object passed in as the scalar value - the $var or $othervar
respectively, whereas refcount() counts the number of reference values that point to the referent object - the anonymous ARRAY in this
case.
Before the CODE reference is constructed, both $var and $othervar have SvREFCNT() of 1, as they exist only in the current lexical pad. The
anonymous ARRAY has a refcount() of 2, because both $var and $othervar store a reference to it.
After the CODE reference is constructed, the $var variable now has an SvREFCNT() of 2, because it also appears in the lexical pad for the
new anonymous CODE block.
PURE-PERL FALLBACK
An XS implementation of this function is provided, and is used by default. If the XS library cannot be loaded, a fallback implementation in
pure perl using the "B" module is used instead. This will behave identically, but is much slower.
Rate pp xs
pp 225985/s -- -66%
xs 669570/s 196% --
SEE ALSO
o Test::Refcount - assert reference counts on objects
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2011-11-15 Devel::Refcount(3pm)